Apparatus for making bleaching powder



April 18, 1933. E. T. LADD APPARATUS FOR MAKING BLEACHING POWDER FiledOct. 26, 1929 .LNvEA/T R EDWARD nonwmne Lam:

17 Tram/2;

Pat'ent'ed Apr. 18,1933

mw'enn'l nemmlxm el b o QL WIS QN, imwxr'oizii, res-rem;memeGlimmer;

eflmreeeeNEWX Q e eqeee eei miror w YORK? errmrrnsroie magine"epnnomiterownnn k iicationafiiea o teiiei 26,1929; seiiaiwiibiiiozmih Myi iee ltes i i gen r w an i pb'al-i rates for, continuously making bleachingpowder eemm n y k iew e ch1e ide i me- Th Pr Pl jeet of my in ntiei lhesheento proyide-"a device bywhich bleaching pe d r'm yhe entinu uely madeand col fl bQ l fl' by ehle inat ngme hy r ewhile freely falling-ina'finelyidivided state-through ehle n t d et esphere; I: 1 Anetheno jeethas: been: fp evicle' a. de vice whereby a desirable commercialbleach lg powder may be ce tinneusl y produced inmarketablequanti ie V i therobject has .-'beento provide a conlli tinuous discharge $01: thefinished bleaching 1 assh wningFig 2 powgier, v Moreoyer, ithacsnheenan, ob ect to provide a: seal at thedischerge of the." device formed bythe 'bleachingrpowder, wherebythe :deVice 339 willhe sealed atithebottom against the escapeoi the chlerinegaswy 1 ,0 V i.

. The; ob ects. and: advantages have been ack complislied the device;shown in" the ac;- companyingdrawingyofwhich;"

f F ig "12 is a vertical, sectional elevationnof mycomplete: device. l v7 Fig/2 is: a plan view of-Figacli.v w v. v l i The: device shown" in;the. accompanying drawing comprisesa chlorinatingi tower. 5',-

preferably cylindrical-in slz ape. and vof con-, siderable height, atthe upperend of. which may 1 be: arranged a gyratorytscreen 6; -which isdriven-by meansiof a rmotoru7. A feecl hopper 8" provided: with a-.screw conveyor may bearrangecl: over the top of the tower. for thepurpose offeedingclime hydrate into thesci eenfi v Bymeanslaofthescreenithe'lime hydrate is causedito freely fallldownthrough the towerini a steady shower 'ofxwell dis tributecl particlszx" j l v c Arrangedat any suitable'p oint in the tower isan-inlet 10' for chlorinegasaby-"which an atmosphere of chlorine is maintained within the tower,through which the. particles of lime m1; thus; exposing 1 the lime:hydrate to Vthe'g'aswhichiti'absorbs, J: i"

Arrangecl at the bottpm' of the'tower:i's-lzi hood 11; preferablycylindrical v in shape and designed to bewater'cooledp Thisihoodrmay.ple ee-l geinet l ekege he h Q E L W is al o Webe -0 .1 Si te l pone,vm a ime (1. 9 n) rerofip i etp me for circulatingcooling;water-throughthe" v 3 ho and, the fl o 1. weenie e nc ilf, e?

me ri of hem. ofecomhinationg may. hefdig sipatecl; The. :hood' andfloor are ,censidee, blyleree in emete t t he W rJ -tliefi as thepartiall we d ev r: fil -0 a d hwi e tl charge opening, it willbe'furth'er' xpq he'ehle i tie tmeephere A en ed. nzteee 'th ifieo a 3-W: hhes e p um ity Qfpedd ee e preferably. inae eulan se e i .Tbejnedd efiz' nle ;,W h. P

s e'iei lhe atte hed e steeeened j e he the 'i ft fin she -iprredeetzwll. b frep'eatedly u d ring ts m e1e ss-th :fleor- T 1l6-.pessee-un:threu c therflee f zke id wee by eny eu teble .mee s! (nohew mete peee meepe egea m eil ll we iily ehe g e ee' betw en-[the toptt e. eIi s edg -efthesh e In its ho izen ele m ement; QWe dZtlie iii 1charge" .en ilieei t e nertiellr h erilietel Pledu iliee ee. Q lIllQfilye er'i leted J h nated ,betW6@ .1 .5j%, and; 33%,, e

wherever i-inithis, clescrijpti norin-the append} v t ed claims L.refergto jthe "finished chlorinated I ne tia ly .ehiloeinet de .bleeinewn welet "5i:

the floolg -lQl. ace

tie S 9 .1"Wherever in the"appended-claims ermin 7 1 tower is used, itis to be understood that it refers tothetower which is so constructedthat the particles of lime hydrate may free ly ,fall within it and notbe obstructed 1n such descent until they reach'the bottom of thetower,afteripassing vertically gthrough the chlorinated atmosphereFurthermore,

' thereforefwish to belimitechto the'e'zia'ct shown-and. described, theform shown being merely; a preferred em bddiment'threoty I ating tower,-means 130' Wherever the term solid material is used intheeclaims, I'.mean liine hydrate in-powder 10 V. .7 l. e

form. w I

Obviouslje area mafia-ant the details herein shown-and described maybemade Without departing from thespirit of my inventionorthescopeoftheappended cla1ms;j as, for example,'a rectangularor.

other cross-sectional shape f r -the chlorinat-' ing'icoinpartment,other-.ni'eans for feeding lime hydrate, other meansforfdischarging thechlorinated product either continuously or, intermittently," and thelike v and I do not,

embpuimem mre n e Having thus des'cr Iclaiinis: An apparatus. for making5 bleachlng ibediny'inventior powdencomprismg a relativ ely highchlorinfor creating a chlorinated atmosphere 'withinthe tower, meanslocat ednearfthejtop' of the toweriforsprinkling distfibutedparticles oflime hydrate into the i tower, the'walls' of the tower being soform'ed'that 1 the particles of lime-hydrate will fall freely, by gravity fromits top to its bottom 1 through the chlorinatedatmosphere, a hood attliebottom of the-tower, meansarranged l atfthe'bottoinof the tower forreceiving the.

V chlorinated product, and means. "roadie-j charg ng such'pro duct from'-'the' apparatus.-

' "?2 'An "pparatus fonm'ak'ing bleaching und rinating tower,

mprising a relatively high chlo means for creating a chlo-{locatedfiiear the top'of the tower for s rinkling distributed particlesof lime hydrate'ginto the I tower," the walls or the tower being so uformedthat the particles or ume'hy r w ,fall freely by gravity from itstop to its hottom through the chlorinated atmosphere, a

hoodl atthe bottom-ofthe tower, a-floor arranged 'underthehood and ininterspaced re;

' lation therewithjand'ineansfor discharging rinati'ng tower', 'meansforthe chlorinated product out through-the space between the hoodand thefloori An apparatus formaking; bleaching powder, comprising a relativelyhigh chlocreatinga chlorinatediatmospherewithin'the to wergdneans 10-bated near the topfof the tower for sprinkling distrib'uted particles oflime hydrateinto the tower, the-walls of thet'ow'er being so for'med v.

' that 'the 'particle's of-lime hydrate will fall freely by:gravity-from its, top-to its bottom through the ohl, )rinate,dvatmosphereya hood ated i atmosphere within the; tower, means vat thebottom of the tower,,a floor arranged under the hood and in interspacedrelation therewith, and a plow for discharging the chlorinated productinto and out through the spacebetween the hood and the floor.

4:. An" apparatus for making bleaching powder, comprising ,a relativelyhigh chlorinating, tower having walls forming a chain ber freeofobstructions, means located near; the-hottem fof fthef chamber. forupplying chlorinegas'tothe'chamher'and directing it a. upwardlytherethrough thus :creating and .maintaining' a chlorinated atmospherewith- .in :tlle: chamber, distributing means located near the top of thechamber for uniformly sprinkling particles of limehydra'te into thechamber so that all o'f such particles jwill fall fby gravityuninterruptedly"throughfthel chamber from its top to its "bottom' andthus be exposed-to the chlorinatedatmosphere, a

hood atth'ebottom 'otthe chamber, a floor I arrangedunderthe-hood-and'in interspaced relation therewithyand a multi-v'ane plowfor v 3 continuously discharging-"the" chlorinatedhathoodand'the-fioorsl product out throughithe' r a -iterat s posed to thechlorinated 7 atmosphere; a; hood at the bottom of thechamber; a-floorarranged underthehood and in interspacedl relationproduct. 1 v H 6; Anapparatus for; makings-bleaching therewith,"a -plowhavingaplurality?ofst'ag 1 gered vanes foricontinuously tumbling, horiE-ev- 'zontally--;mov;in g. and discharging;glithejpowder, comprisingia relatively highchlo'rin ating tower, means'for. creating achlorinated atmosphere withinthe tower, ashaker eler, mentv located nearythewtop of thetower fordistributing; particles of solid 'fmaterial into the tower,;thewalls.:.of: the tower being so 'formedthat such particles willfallfreely by gravity from its top to its-bottom through the chlorinatedatmosphere, and a plow for discharging such product ,trom the, iappa Lratus '7. :Anii apparatus for powder,- comprising a relatively highfchlorin ating tower having-walls forming acham;

her free from obstructions, mean's for cr atingv achlorinatedatmosphere}Withihi-the v chamber,-- a shaker element, located near ithe top of thechamber for continuously distributing particles of solid material intothe chamber, so that such particles will fall uninterruptedly throughthe chamber from its top to its bottom, and means for continuouslydischarging such product from the chamber. 8. An apparatus for makingbleaching powder, comprising a relatively high chlorinating tower havingwalls forming a chamber free from obstructions, means for creating achlorinated atmosphere Within the chamber, a shaker element located nearthe top of the chamber for distributing particles of solid material intothe chamber, so that such particles will fall uninterruptedly throughthe chamber, means located at the bottom of the chamber for receivingthe chlorinated product and for forming a discharge opening around itsperiphery, and a plow for discharging such product through the dischargeopening.

In testimony whereof, I have hereunto signed my name.

EDWARD THORNDIKE LADD.

